Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning

41.
In a shell and coil condenser, water flows in the shell and the refrigerant in the coil.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

42.
In a saturated air-water vapour mixture, the
dry bulb temperature is higher than wet bulb temperature
dew point temperature is lower than wet bulb temperature
dry bulb, wet bulb and dew point temperature are same
dry bulb temperature is higher than dew point temperature
Answer: Option
Explanation:
No answer description is available. Let's discuss.

43.
Dew point temperature corresponds to the saturation temperature of vapour at its partial pressure.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

44.
The capillary tube is not used in large capacity refrigeration systems because
cost is too high
capacity control is not possible
it is made of copper
required pressure drop can not be achieved
Answer: Option
Explanation:
No answer description is available. Let's discuss.

45.
The ratio of emissive power of a body to the emissive power of a perfectly black body is called emissivity.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.